5OS01 Specialist Employment Law examines important aspects of work laws and their legal setup. It looks closely at how HR professionals must consider legal rules from various places when performing their duties.
Table of Contents
If you are writing 5OS01 this year, there is a problem with most of the guidance available online and quite possibly with your course materials. UK employment law has moved significantly since 2024, and two changes in particular affect answers that would have been correct eighteen months ago.
This guide covers what the unit actually assesses, how the assignment is structured, and which parts of the law have changed since most 5OS01 material was written. It is written to be useful whether or not you ever buy anything from us.
What 5OS01 actually assesses
5OS01 Specialist Employment Law sits within the CIPD Level 5 Associate Diploma in People Management. It is a specialist unit rather than a core one, and it differs from most of the Level 5 suite in an important respect: it tests legal application, not policy discussion.
Four learning outcomes:
- LO1 Understand the purpose of employment regulation and the way it is enforced in practice
- LO2 Understand how to manage recruitment and selection activities lawfully
- LO3 Understand how to manage change and re-organisation lawfully
- LO4 Understand how to manage issues relating to pay and working time lawfully
Check the assessment criteria numbering against your own centre’s brief before you start, since CIPD revises unit specifications periodically and centres do not always issue the newest version.
The format catches people out
5OS01 is not a report or an essay. The standard brief places you in the People Management department of a large UK NHS trust, where you advise colleagues on employment law. You receive ten emails and answer each one.
Three practical consequences:
Roughly 390 words per answer. The total is approximately 3,900 words within CIPD’s ±10% policy, spread across ten answers. That is tight. Each answer needs a legal position, authority for it, and practical advice, in under 400 words. Padding is not available to you.
Assessment criteria numbers as headings. The brief requires it. Assessors mark against criteria, and an answer that does not signpost which criterion it addresses makes their job harder and risks a criterion being recorded as unmet.
Two referencing systems, not one. This is the requirement most people get wrong, and it is worth being precise about.
Referencing law properly
The brief asks for in-text referencing of the law across three categories, plus Harvard referencing for everything else.
Primary legislation means Acts of Parliament. Cite by short title and year: the Equality Act 2010, the Employment Rights Act 1996. Where a specific provision matters, name it: section 98(4) of the Employment Rights Act 1996 rather than a general reference to the Act.
Secondary legislation means Regulations, Orders and statutory Codes of Practice. The Working Time Regulations 1998, the ACAS Code of Practice on Disciplinary and Grievance Procedures. Codes are not law in themselves, but a tribunal must take a relevant Code into account and may adjust compensation where it has been unreasonably ignored, which is worth stating when you rely on one.
Case law means judicial decisions. Cite by party names and year, italicised, with the citation where you have it. Get the parties the right way round, and be careful about which court decided it, because a first instance employment tribunal decision binds nobody.
Harvard referencing applies to textbooks, CIPD factsheets, journal articles and any commentary. It does not apply to legislation. Mixing the two, so that the Equality Act appears in your reference list formatted as though it were a book, signals to an assessor that you have not understood the distinction the brief is testing.
What has changed in the law since your materials were written
This is the section that matters most if you are writing in 2026, and it is where the majority of published 5OS01 guidance is now out of date.
The Employment Rights Act 2025
The Employment Rights Act 2025 received Royal Assent on 18 December 2025. It is the largest package of employment law reform in a generation, and there is a great deal of confusion about what it currently requires.
Most of it is not yet in force. The Act creates a framework; the operative detail sits in supplementary regulations that have not been made. The government has confirmed it intends to bring the principal provisions into effect during 2027, and no specific commencement date has been set.
For an assignment, this distinction is the difference between a strong answer and a wrong one. Writing that employers “must now” offer guaranteed hours to zero-hours workers is incorrect. Writing that the Act “will require” such offers once regulations are made, and explaining what remains undecided, demonstrates exactly the legal precision the unit is testing.
On zero-hours arrangements specifically, the government consulted through Make Work Pay: ending one-sided flexibility, which ran from 2 June 2026 and closed on 25 August 2026. Several central questions remain open:
| Question | Position as at August 2026 |
|---|---|
| Zero-hours contracts banned | No. Not banned by the Act |
| Right to a guaranteed hours offer | In the Act; not yet in force |
| Length of the reference period | Open. Government prefers 12 weeks |
| What counts as reasonable notice | Open. Consulted options range from one to four weeks |
| Low-hours qualifying threshold | Open. Options from 8 to 48 hours weekly |
| Commencement | Expected 2027 |
Anyone stating that the reference period is twelve weeks is describing a preference as though it were settled law.
The status of EU case law after Brexit
The standard brief asks you to advise a senior manager on whether judgments of the European Court of Justice made before the UK left the EU remain good law. This question has a different answer now than it did when many course materials were written.
The Retained EU Law (Revocation and Reform) Act 2023 changed the position substantially. From 1 January 2024, retained EU law was renamed assimilated law, and the principle of the supremacy of EU law was abolished for the purposes of UK law.
Retained EU case law was not swept away. It continues to bind lower courts. What changed is how readily the higher courts can depart from it: the Act lowered the threshold and introduced a mechanism by which lower courts and tribunals can refer a point to a higher court to consider departing from retained case law.
A strong answer to that email says that such judgments generally remain binding on lower courts, that they are no longer supreme over domestic law, that the appellate courts can now depart from them more easily than before, and gives a concrete illustration. A weak answer says either that they were all abolished or that nothing has changed. Both are wrong, and both are common.
Other recent developments worth knowing
The Worker Protection (Amendment of Equality Act 2010) Act 2023 introduced a duty on employers to take reasonable steps to prevent sexual harassment of employees, in force since October 2024. This is a preventative duty, which is a genuine shift: it bites before any harassment occurs, rather than only providing a remedy afterwards. It is relevant to several of the standard emails and is frequently omitted entirely.
Equality action plans. The Employment Rights Act 2025 includes provision for regulations requiring larger employers to publish action plans on gender pay gap and menopause support. As with the rest of the Act, check the commencement position before writing that it applies.
Why 5OS01 submissions get referred
Common reasons, in rough order of frequency:
Describing the law instead of applying it. The emails ask what a manager should do. An answer that explains what the Equality Act says without advising the manager has answered a different question.
No legal authority. Assertions about the legal position without a statute, regulation or case behind them. This is the single most cited reason for referral on this unit.
Out-of-date law. Particularly on retained EU law, on the preventative harassment duty, and now on the Employment Rights Act 2025.
Missing the assessment criteria headings. A formatting requirement, and criteria that cannot be located may be recorded as unmet.
Word count problems. Ten answers at 390 words means discipline. Running to 700 words on the questions you find interesting and 150 on the ones you do not is a reliable route to a referral on the thin ones.
Confusing the referencing systems. Legislation formatted as Harvard sources, or case names given without parties.
Answering as an academic rather than as a practitioner. You are writing as someone in an NHS trust’s People Management team replying to a colleague. The register should be professional advice, not an essay.
How to approach the ten emails
Read all ten first and map each to its assessment criterion before writing anything. Two or three will cover territory you know well; those are the ones where you will overwrite, so draft them last.
For each answer, work to the same internal structure: the legal position, the authority for it, what it means for this manager in this situation, and what they should do. Four moves in 390 words is achievable. Discussion of the wider policy context usually is not, and is rarely what the criterion asks for.
Where the law is unsettled, say so and explain what is settled and what is not. This is a strength rather than a hedge, particularly on anything touching the Employment Rights Act 2025.
Common questions
How many words is 5OS01? Approximately 3,900 across ten answers, within CIPD’s ±10% policy. Around 390 words each.
Do I have to use the NHS trust scenario? The standard brief supplies it. Some centres substitute their own. Follow whichever brief your centre issued.
Do I need to cite cases? Yes. The brief requires case law alongside primary and secondary legislation. You do not need many, but assertions of legal principle need authority.
Is 5OS01 harder than the core units? It is different rather than harder. It requires precision and authority in place of discussion, which suits some people considerably better than others.
Can I write about non-UK law? The unit refers to legal requirements in different jurisdictions. The standard brief is UK-based, and any comparative material should serve the question rather than replace it.
Sources and further reading
- Employment Rights Act 2025 (Royal Assent 18 December 2025)
- Retained EU Law (Revocation and Reform) Act 2023
- Worker Protection (Amendment of Equality Act 2010) Act 2023
- Equality Act 2010; Employment Rights Act 1996
- HM Government, Make Work Pay: ending one-sided flexibility, consultation closed 25 August 2026
- ACAS Code of Practice on Disciplinary and Grievance Procedures
- CIPD unit specification, 5OS01 Specialist Employment Law
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